The largest nuclear weapon ever tested was Tsar Bomba, a 50-megaton device detonated by the Soviet Union in 1961. That made it “3,300 times as powerful” as the bomb dropped on Hiroshima — an almost ...

Have you been following the story? What do you think the news and our reactions to it say about America today? By Katherine Schulten See what you remember about this extraordinary year by taking ...

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The atomic bomb, born of science, a way of life, fostered throughout the centuries, in which the role of coercion was perhaps reduced more completely than in any other human activity, and which ...

Walt Handelsman cartoon on the U.S. health-care industry.

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Need to forget the state of the world? Escape to this city hideaway, complete with non-leaky air mattresses and easy access to the fire escape through a hidden kitchen nook!

A Ukrainian official said Kyiv was responsible for the assassination in Moscow of Gen. Igor Kirillov, the chief of Russia’s radioactive, chemical and biological defense forces. By Anton ...

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Forecasters also said the storm had the potential to include a process that meteorologists call bombogenesis, or a “bomb cyclone.” That’s a rapid intensification of a cyclone in a short ...